# appEntityIdentifier(forSelectionType:identifier:) Associates the items in a SwiftUI list view with app entities to make them discoverable by Apple Intelligence and Siri. ``` nonisolated func appEntityIdentifier(forSelectionType itemType: I.Type = I.self, identifier: @escaping @Sendable (I) -> EntityIdentifier?) -> some View where I : Hashable ``` ## Discussion Use this modifier to make app entities that describe data in a list discoverable by Apple Intelligence and Siri. This provides additional context to the system when the list appears onscreen and people scroll through it. The following example associates a view that displays books with an app entity for each book in the list. ```swift struct BookListView: View { let books: [Book] @State private var selection = Set() var body: some View { List(selection: $selection) { ForEach(books) { book in BookView(book.name) } } .appEntityIdentifier(forSelectionType: Book.ID.self) { bookId in EntityIdentifier(for: Book.self, identifier: bookId) } } } ``` For more information, refer to and . --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)